Patents by Inventor Yasuhito Hiraki
Yasuhito Hiraki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9815167Abstract: A lens manufacturing method including a holding step of holding a lens in a lens holding fixture, and a machining step of machining a surface to be machined in the held lens. A reverse surface of the surface to be machined is machined into a non-planar shape with a first surface shape error. A lens holding surface of the lens holding fixture is machined into the same shape as the non-planar shape with a second surface shape error smaller than the first surface shape error. In the holding step, the reverse surface is brought into surface contact with the holding surface in imitation of the holding surface to correct the shape of the lens such that the reverse surface runs along the holding surface. In the machining step, the surface to be machined is machined in a state where the correction has been made by the holding step.Type: GrantFiled: March 10, 2017Date of Patent: November 14, 2017Assignee: FUJIFILM CorporationInventors: Yasuhito Hiraki, Kenji Ito, Seiichi Watanabe
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Publication number: 20170182621Abstract: A lens manufacturing method including a holding step of holding a lens in a lens holding fixture, and a machining step of machining a surface to be machined in the held lens. A reverse surface of the surface to be machined is machined into a non-planar shape with a first surface shape error. A lens holding surface of the lens holding fixture is machined into the same shape as the non-planar shape with a second surface shape error smaller than the first surface shape error. In the holding step, the reverse surface is brought into surface contact with the holding surface in imitation of the holding surface to correct the shape of the lens such that the reverse surface runs along the holding surface. In the machining step, the surface to be machined is machined in a state where the correction has been made by the holding step.Type: ApplicationFiled: March 10, 2017Publication date: June 29, 2017Applicant: FUJIFILM CorporationInventors: Yasuhito HIRAKI, Kenji ITO, Seiichi WATANABE
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Patent number: 9164253Abstract: In a composite molded lens, a press-formed lens body is integral with an injection-molded lens frame. The lens body has a lens portion and a flange portion surrounding the lens portion. Eight projections are radially formed on a top surface of the flange portion. The height of the projection increases toward an outer peripheral edge side of the flange portion. A recess is formed on an outer peripheral edge face of the flange portion and located at a position on a line extending from the projection. The recess increases torsional resilience of a joint surface between the lens body and the lens frame and strengthens bonding force there between.Type: GrantFiled: August 14, 2014Date of Patent: October 20, 2015Assignee: FUJIFILM CORPORATIONInventors: Kazumi Koike, Seiichi Watanabe, Takayuki Fujiwara, Yasuhito Hiraki
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Publication number: 20140347752Abstract: In a composite molded lens, a press-formed lens body is integral with an injection-molded lens frame. The lens body has a lens portion and a flange portion surrounding the lens portion. Eight projections are radially formed on a top surface of the flange portion. The height of the projection increases toward an outer peripheral edge side of the flange portion. A recess is formed on an outer peripheral edge face of the flange portion and located at a position on a line extending from the projection. The recess increases torsional resilience of a joint surface between the lens body and the lens frame and strengthens bonding force there between.Type: ApplicationFiled: August 14, 2014Publication date: November 27, 2014Inventors: KAZUMI KOIKE, SEIICHI WATANABE, TAKAYUKI FUJIWARA, YASUHITO HIRAKI
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Patent number: 7891965Abstract: A mold for molding a product in a cavity formed by closing the mold is provided. The mold includes a first half; a second half; and a plurality of aligning members which contact respective outer circumferential surfaces of a first die of the first half and a second die of the second half, at least in three directions, when the mold is closed. At least one of the aligning members is moved toward the outer circumferential surfaces of the first die and the second die, and then each of the aligning members sandwiches the first die and the second die, which enables a center axis alignment between the first die and the second die.Type: GrantFiled: January 9, 2007Date of Patent: February 22, 2011Assignee: Fujifilm CorporationInventors: Noriko Eiha, Seiichi Watanabe, Yasuhito Hiraki
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Patent number: 7833451Abstract: In a mold, at least a first half includes an insert member forming a cavity surface on one end side; a body member having an insertion part into which the insert member is inserted; and an insert member fixer interposed between the insert member and the insertion part, for holding the insert member. The insert member fixer is made of a shape memory alloy, and presses and holds the insert member when the insert member fixer restores its memorized shape, to make a center axis alignment of the insert member with respect to the body member.Type: GrantFiled: January 24, 2007Date of Patent: November 16, 2010Assignee: Fujifilm CorporationInventors: Noriko Eiha, Seiichi Watanabe, Yasuhito Hiraki
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Patent number: 7643048Abstract: The image transfer apparatus includes a transmission type image display device, a light source and a parallel rays generating element, and light that is irradiated from the light source, made into substantially parallel rays by the parallel rays generating element, and transmitted through the image display device to expose a photosensitive recording medium and a display image displayed on the image display screen is transferred to the photosensitive recording medium. This apparatus further includes a moving device for moving the parallel rays generating element and the image display device relatively during the transfer.Type: GrantFiled: November 6, 2002Date of Patent: January 5, 2010Assignee: FUJIFILM CorporationInventors: Naoyoshi Chino, Yasunori Tanaka, Yasuhito Hiraki
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Patent number: 7594808Abstract: A mold for molding a product in a cavity formed by closing the mold includes a first half; a second half; and a plurality of aligning members which come in contact with each side circumferential surface of the first half 100 and the second half at least in three directions, when the mold is closed. After the mold is closed, at least one of the aligning members is moved to contact the aligning member with the each side circumferential surface of the first half and the second half, which enables a center axis alignment between the first half and the second half.Type: GrantFiled: January 9, 2007Date of Patent: September 29, 2009Assignee: FUJIFILM CorporationInventors: Noriko Eiha, Seiichi Watanabe, Yasuhito Hiraki
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Publication number: 20070170607Abstract: In a mold, at least a first half includes an insert member forming a cavity surface on one end side; a body member having an insertion part into which the insert member is inserted; and an insert member fixer interposed between the insert member and the insertion part, for holding the insert member. The insert member fixer is made of a shape memory alloy, and presses and holds the insert member when the insert member fixer restores its memorized shape, to make a center axis alignment of the insert member with respect to the body member.Type: ApplicationFiled: January 24, 2007Publication date: July 26, 2007Applicant: FUJIFILM CorporationInventors: Noriko Eiha, Seiichi Watanabe, Yasuhito Hiraki
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Publication number: 20070164465Abstract: A mold for molding a product in a cavity formed by closing the mold includes a first half; a second half; and a plurality of aligning members which come in contact with each side circumferential surface of the first half 100 and the second half at least in three directions, when the mold is closed. After the mold is closed, at least one of the aligning members is moved to contact the aligning member with the each side circumferential surface of the first half and the second half, which enables a center axis alignment between the first half and the second half.Type: ApplicationFiled: January 9, 2007Publication date: July 19, 2007Applicant: FUJIFILM CorporationInventors: Noriko Eiha, Seiichi Watanabe, Yasuhito Hiraki
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Publication number: 20070166426Abstract: A mold for molding a product in a cavity formed by closing the mold is provided. The mold includes a first half; a second half; and a plurality of aligning members which contact respective outer circumferential surfaces of a first die of the first half and a second die of the second half, at least in three directions, when the mold is closed. At least one of the aligning members is moved toward the outer circumferential surfaces of the first die and the second die, and then each of the aligning members sandwiches the first die and the second die, which enables a center axis alignment between the first die and the second die.Type: ApplicationFiled: January 9, 2007Publication date: July 19, 2007Applicant: FUJIFILM CorporationInventors: Noriko Eiha, Seiichi Watanabe, Yasuhito Hiraki
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Publication number: 20030128399Abstract: The image transfer apparatus includes a transmission type image display device, a light source and a parallel rays generating element, and light that is irradiated from the light source, made into substantially parallel rays by the parallel rays generating element, and transmitted through the image display device to expose a photosensitive recording medium and a display image displayed on the image display screen is transferred to the photosensitive recording medium. This apparatus further includes a moving device for moving the parallel rays generating element and the image display device relatively during the transfer.Type: ApplicationFiled: November 6, 2002Publication date: July 10, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Naoyoshi Chino, Yasunori Tanaka, Yasuhito Hiraki
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Patent number: 5304254Abstract: A method for removing dirt from a web in which a blow-off nozzle is provided extending over the width of a web. An edge of the nozzle at an end thereof is positioned close to one surface of the web. Air is blown through the nozzle while said web is being run past said nozzle so that deposits are removed from a surface of the web with the edge while the web is maintained in a floating state separated from the nozzle.Type: GrantFiled: July 26, 1991Date of Patent: April 19, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyoshi Chino, Yasuhito Hiraki, Hiromu Ueha, Tsunehiko Sato
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Patent number: 5203922Abstract: An application device for applying a coating liquid to a moving web which forms an applied layer of uniform thickness and with smooth surface properties. The sides of a slotted portion of an extrusion-type application head are provided with sloped or stepped portions in regions adjacent liquid-free areas of the web. This prevents scratching of the web and accumulation of extraneous matter at the edge portions of the application head.Type: GrantFiled: October 21, 1991Date of Patent: April 20, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Norio Shibata, Yasuhito Hiraki, Tsunehiko Sato
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Patent number: 5114753Abstract: A coating material and apparatus in which the edge portions of the web being coated are supported off the edge portions of the coating head. In one embodiment, recesses are formed in the edge portions of the coating head, while in another embodiment a fluid is jetted towards the edge portions of the web. With the invention, scratching and the like of the edge portions of the web are eliminated, and the web is coating to a uniform thickness in the width direction thereof.Type: GrantFiled: October 16, 1991Date of Patent: May 19, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Norio Shibata, Tsunehiko Sato, Naoyoshi Chino, Yasuhito Hiraki
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Patent number: 5108787Abstract: A method for manufacturing a magnetic recording medium or the like and an applicator device for applying a coating to manufacture a magnetic recording medium resulting in the production of a recording medium having a uniform coating of magnetic liquid without streaking. In one embodiment, the flow index A expressed by an equation (1) below and in which L, V and .gamma.Type: GrantFiled: December 31, 1990Date of Patent: April 28, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhito Hiraki, Shinsuke Takahashi, Naoyoshi Chino
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Patent number: 5099786Abstract: An application device for applying a coating liquid to a moving web which forms an applied layer of uniform thickness and with smooth surface properties. The sides of a slotted portion of an extrusion-type application head are provided with sloped or stepped portions in regions adjacent liquid-free areas of the web. This prevents scratching of the web and accumulation of extraneous matter at the edge portions of the application head.Type: GrantFiled: March 5, 1991Date of Patent: March 31, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Norio Shibata, Yasuhito Hiraki, Tsunehiko Sato
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Patent number: 5083524Abstract: A method for manufacturing a magnetic recording medium or the like and an applicator device for applying a coating to manufacture a magnetic recording medium resulting in the production of a recording medium having a uniform coating of magnetic liquid without streaking. In one embodiment, the flow index A expressed by an equation (1) below and in which L, V and .gamma.Type: GrantFiled: July 10, 1991Date of Patent: January 28, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhito Hiraki, Shinsuke Takahashi, Naoyoshi Chino
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Patent number: 5072688Abstract: A coating method and an extrusion-type coating head in which turbulence at the junction between two flows of coating materials is prevented to provide multi-layer simultaneous coating over a wide range of coating rates and with a good coating quality. An intermediate block is sandwiched betwen a rear block defining a back edge and a front block defining a doctor edge. Two coating flows pass through slits formed on either side of the intermediate block, joining at the top end of the intermediate block and flowing together into a short slot extending between the end of the intermediate block and the outlet of the head.Type: GrantFiled: February 7, 1990Date of Patent: December 17, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyoshi Chino, Yasuhito Hiraki, Norio Shibata, Tsunehiko Sato
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Patent number: 5030484Abstract: A coating method and an extrusion-type coating head in which turbulence at the junction between two flows of coating materials is prevented to provide multi-layer simultaneous coating over a wide range of coating rates and with a good coating quality. An intermediate block is sandwiched between a rear block defining a back edge and a front block defining a doctor edge. Two coating flows pass through slits formed on either side of the intermediate block, joining at the top end of the intermediate block and flowing together into a short slot extending between the end of the intermediate block and the outlet of the head.Type: GrantFiled: July 3, 1989Date of Patent: July 9, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyoshi Chino, Yasuhito Hiraki, Norio Shibata, Tsunehiko Sato